Initial Setup

Create your initial class.

if(! class_exists('Wib_Slider')){
   class Wib_Slider{
      function __construct(){

      }
   } 
}

if(class_exists('Wib_Slider')){
   $wib_slider = new Wib_Slider();
}

Now, let’s define the constants we will need:

if(! class_exists('Wib_Slider')){
   class Wib_Slider{
      function __construct(){
         $this->define_constants();
      }
      public function define_constants(){
         define ('WIB_SLIDER_PATH') = plugin_dir_path(__FILE__);
         define ('WIB_SLIDER_URL') = plugin_dir_url(__FILE__);
         define ('WIB_SLIDER_VERSION','1.0.0');
      }
   }
}

if(class_exists('Wib_Slider')){
   $wib_slider = new Wib_Slider();
}